I want to make my own Shower shine or Streak-free Shower cleaner or what have you. The stuff you spray onto a fiberglass surround immediately after showering and don't need to rinse off.
There's got to be some household ingredient you can use for this. I know I could get some Calgon or other non-precipitating softener, but doesn't something else, like vinegar maybe, have the same effect?
-Oldy